παραβλύζειν τοῦ οἴνου ἐν τῷ ὕπνω → disgorge wine in one's sleep, belch a bit of wine in one's sleep
bog: P. ἕλος, τό, Ar. and P. τέλμα, τό.
skin of a serpent: V. χιτών, ὁ (Eur., Iphigenia in Tauris 288).